All categories

2 years ago

Solve the simultaneous equation 4x-y=9 2x-3y= -23

Mathematics

1 answer:

MrMuchimi2 years ago

4 0

Answer:

x = 5

y = 11

Step-by-step explanation:

y = 4x - 9

2x -3(4x - 9) = -23

2x - 12x + 27 = -23

-10x = -23 -27

-10x = -50

minus cancels out

x = 5

y = 4(5) -9

y = 20 - 9

y = 11

You might be interested in

The blueprint of a rectangular house is 2.5 inches by 1.5 inches. If the scale is 1:20, what is the perimeter of the actual hous

defon

Answer:

160

Step-by-step explanation:

(2.5 x 2)+(1.5 x 2) =8 (perimeter of scale)

8x20 = 160

4 0

2 years ago

Which function has no horizontal asymptote? F (x) = StartFraction 2 x minus 1 Over 3 x squared EndFraction f (x) = StartFraction

yanalaym [24]

Answer:

$f(x)=\frac{2x^2}{3x-1}$

Step-by-step explanation:

The function $f(x)=\frac{2x-1}{3x}$ has a horizontal asymptote which is $y=\frac{2}{3}$

The function $f(x)=\frac{x-1}{3x}$ has a horizontal asymptote which is $y=\frac{1}{3}$

The function $f(x)=\frac{2x^2}{3x-1}$ has no horizontal asymptote because the numerator has a degree which is higher than the degree of the denominator,

The function $f(x)=\frac{3x^2}{x^2-1}$ has a horizontal asymptote which is $y=3$

3 0

2 years ago

Read 2 more answers

HELP! "translate: the product of 8 and a number increased by 2 use x as the variable"

Bumek [7]

Answer:

variable is ( x )

∆product of 8 :

8 x

∆the number increased by 2 :

8 x + 2

And we're done ♥️

3 0

3 years ago

Read 2 more answers

Vertical angles must : check all that apply

trapecia [35]

Answer: B and C

Step-by-step explanation: For A, vertical angles can be complimentary or supplementary. For D, vertical angles can sometimes be acute but not always.

3 0

1 year ago

Read 2 more answers

Penn volunteered a total of 72 hours over the last 12 weeks. If he volunteered the same number of hours each week, how many hour

schepotkina [342]

Answer: 6 hours per week

Step-by-step explanation:

72/12=6

3 0

2 years ago